| 风速和秸秆覆盖对土壤水分蒸发影响的模拟试验研究 |
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| 引用本文： | 李晓明,王飞,胡林,穆兴民.风速和秸秆覆盖对土壤水分蒸发影响的模拟试验研究[J].干旱地区农业研究,2011,29(3):186-190. |
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| 作者姓名： | 李晓明 王飞 胡林 穆兴民 |
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| 作者单位： | 西北农林科技大学资源环境学院;中国科学院水利部水土保持研究所; |
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| 基金项目： | 国家科技支撑计划项目黄土高原水土流失综合治理工程关键支撑技术研究(2006BAD09B00); 欧盟框架计划项目(FP6,DE-SIRE,037046); 西北农林科技大学留学归国人员科研专项 |
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| 摘 要： | 通过室内模拟试验方法,研究了不同风速(静风、0.5、1.5m/s)和秸秆覆盖量(0、4 120、8240kg/hm2)对土壤水分蒸发的影响.结果表明:(1)土壤水分蒸发受风速和秸秆覆盖的明显影响,当土壤含水量大于田间持水量的70%、覆盖量一定时(0、4120 kg/hm2)时,风速0 m/8与1.5 m/s之间的土壤日...
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| 关 键 词： | 土壤水 蒸发 秸秆覆盖 风速 干旱半干旱区 |
Impact of wind-speed and straw-mulching on soil water evaporation |
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| LI Xiaoming,WANG Fei,HU Lin,MU Xingmin.Impact of wind-speed and straw-mulching on soil water evaporation[J].Agricultural Research in the Arid Areas,2011,29(3):186-190. |
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| Authors: | LI Xiaoming WANG Fei HU Lin MU Xingmin |
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| Institution: | LI Xiao-ming1,WANG Fei1,2,HU Lin1,MU Xing-min1,2(1.College of Resources and Environment,Northwest A & F University,Yangling,Shaanxi 712100,China,2.Institute of Soil and Water Conservation,Chinese Academy of Sciences & Ministry of Water Resources,China) |
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| Abstract: | The impacts of wind-speed and straw-mulching on soil water evaporation were measured and analyzed with 9 treatments of three wind-speeds(calm wind,0.5 or 1.5 m/s) and three straw-mulching levels(0,4 120,or 8 240 kg/hm2).The results showed that when the water content was 70% of the field moisture capacity and mulching(0,4 120 kg/hm2) was the same,the soil water evaporation with wind-speed 1.5 m/s was significantly higher than other treatments;when the water content was higher than 55% of the field moisture c... |
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| Keywords: | soil water evaporation straw-mulching wind arid and semi-arid region |
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